Triple

T3424207
Position Surface form Disambiguated ID Type / Status
Subject Asakusa E72187 entity
Predicate servedByLine P1293 FINISHED
Object Tsukuba Express (nearby)
Tsukuba Express (nearby) is a high-speed commuter rail line in the Tokyo metropolitan area connecting Akihabara in central Tokyo with Tsukuba in Ibaraki Prefecture.
E358003 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Tsukuba Express (nearby) | Statement: [Asakusa, servedByLine, Tsukuba Express (nearby)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tsukuba Express (nearby)
Context triple: [Asakusa, servedByLine, Tsukuba Express (nearby)]
  • A. Tobu Skytree Line
    The Tobu Skytree Line is a major private railway line in the Tokyo area operated by Tobu Railway, serving central Tokyo and extending northward toward Saitama and Tochigi, including access to the Tokyo Skytree.
  • B. Sōbu Line Rapid
    The Sōbu Line Rapid is a Japanese railway service operated by JR East that provides fast commuter and intercity connections between central Tokyo and eastern Chiba Prefecture.
  • C. Tobu Isesaki Line
    The Tobu Isesaki Line is a major private railway line in the Greater Tokyo area operated by Tobu Railway, connecting central Tokyo with Saitama and Gunma Prefectures.
  • D. JR Lines at Kanda
    JR Lines at Kanda refers to the Japan Railways train services that stop at Kanda Station in Tokyo, a key commuter hub connecting multiple JR lines with the Tokyo Metro network.
  • E. Kintetsu Nara Line
    The Kintetsu Nara Line is a major private railway line in Japan connecting Osaka with the historic city of Nara, serving commuters and tourists across the Kansai region.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Tsukuba Express (nearby)
Triple: [Asakusa, servedByLine, Tsukuba Express (nearby)]
Generated description
Tsukuba Express (nearby) is a high-speed commuter rail line in the Tokyo metropolitan area connecting Akihabara in central Tokyo with Tsukuba in Ibaraki Prefecture.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Tsukuba Express (nearby)
Target entity description: Tsukuba Express (nearby) is a high-speed commuter rail line in the Tokyo metropolitan area connecting Akihabara in central Tokyo with Tsukuba in Ibaraki Prefecture.
  • A. Tobu Skytree Line
    The Tobu Skytree Line is a major private railway line in the Tokyo area operated by Tobu Railway, serving central Tokyo and extending northward toward Saitama and Tochigi, including access to the Tokyo Skytree.
  • B. Sōbu Line Rapid
    The Sōbu Line Rapid is a Japanese railway service operated by JR East that provides fast commuter and intercity connections between central Tokyo and eastern Chiba Prefecture.
  • C. Tobu Isesaki Line
    The Tobu Isesaki Line is a major private railway line in the Greater Tokyo area operated by Tobu Railway, connecting central Tokyo with Saitama and Gunma Prefectures.
  • D. JR Lines at Kanda
    JR Lines at Kanda refers to the Japan Railways train services that stop at Kanda Station in Tokyo, a key commuter hub connecting multiple JR lines with the Tokyo Metro network.
  • E. Kintetsu Nara Line
    The Kintetsu Nara Line is a major private railway line in Japan connecting Osaka with the historic city of Nara, serving commuters and tourists across the Kansai region.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69ad85ad38e48190b7660c5118a35289 completed March 8, 2026, 2:20 p.m.
NER Named-entity recognition batch_69adb9533b588190a18a9b6495712ee0 completed March 8, 2026, 6 p.m.
NED1 Entity disambiguation (via context triple) batch_69b3547468b8819088e7c4cf3b2e2079 completed March 13, 2026, 12:04 a.m.
NEDg Description generation batch_69b35519b7f08190b1ea7514036c3453 completed March 13, 2026, 12:06 a.m.
NED2 Entity disambiguation (via description) batch_69b358fba2208190bc66d5f7d0009ba4 completed March 13, 2026, 12:23 a.m.
Created at: March 8, 2026, 3:15 p.m.